2.7.4.9 Ca2+ can partially replace Mg2+ in activation 645205 2.7.4.9 Cd2+ can partially replace Mg2+ in activation 645205 2.7.4.9 Co2+ 18% of maximal activation with Mg2+ 645198 2.7.4.9 Co2+ can partially replace Mg2+ in activation 645205 2.7.4.9 Co2+ divalent cation required, Co2 can fully substitute for Mg2+ 645191 2.7.4.9 Co2+ may substitute for Mg2+ 737398 2.7.4.9 Fe2+ divalent cation required, Fe2+ can fully substitute for Mg2+ 645191 2.7.4.9 Mg2+ absolute requirement for divalent cation. When Mg2+ is equal to ATP, the rate of dTMP kinase reaction is maximal 645198 2.7.4.9 Mg2+ activity is maximal in presence of 2-5 mM ATP and 10 mM MgCl2 645205 2.7.4.9 Mg2+ bound to enzyme, displacement of Mg2+ is responsible for inhibitory effect of 3’-azido-3’-deoxythymidine 5'-monophosphate 661170 2.7.4.9 Mg2+ bound to enzyme, displacement of Mg2+ might be responsible for inhibitory effect of the enzyme inhibitors 662169, 662597 2.7.4.9 Mg2+ contains Mg2+ at the active site 706485 2.7.4.9 Mg2+ divalent cation required 645191 2.7.4.9 Mg2+ most favourable divalent cation 737398 2.7.4.9 Mg2+ required 721198, 758591 2.7.4.9 Mg2+ required for activity 723714 2.7.4.9 Mg2+ required, concentration range for maximal activity is From Mg:ATP ratios of 1 to 3 with an optimum around 1.3 to 1.5 645188 2.7.4.9 Mg2+ requirement of a Mg2+:ATP ratio greater than 1.0 and for optimal activity there is a requirement of an additional 2-3 mM Mg2+ above the concentration of ATP 645194 2.7.4.9 Mn2+ 41% of maximal activation with Mg2+ 645198 2.7.4.9 Mn2+ 52% of the activtiy with Mg2+ 737398 2.7.4.9 Mn2+ can partially replace Mg2+ in activation 645205 2.7.4.9 Mn2+ can partially replace Mg2+ requirement 645194 2.7.4.9 Mn2+ divalent cation required, Mn2+ can fully substitute for Mg2+ 645191 2.7.4.9 additional information presence of a divalent cation is required. In presence of Ca2+, Cu2+, less than 10% of maximum activity, no activity with Zn2+ 737398 2.7.4.9 NaCl from 0-0.5 M does not affect activity 645191 2.7.4.9 Ni2+ 10% of the activity with Mg2+ 737398 2.7.4.9 Ni2+ divalent cation required, Ni2+ can fully substitute for Mg2+ 645191